VoIP One-way Audio and Voice drops
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@scottalanmiller said:
@coliver said:
@scottalanmiller said:
@coliver said:
@scottalanmiller said:
Might be worth looking into that. There are some free options for that. Ubiquiti and Meraki both have some built in options that are better than nothing. But you can use free tools to collect total traffic from them (at least from the Ubiquiti) that will provide you some historical numbers which should help a lot for correlating that. I would start by tracking when the phones are good and bad in a manual "log".
My guess is that Solarwinds has something free and easy to use for this scale.
The problem is that they are always bad. Seems to be every 5-10 seconds that they cut out.
Wait, they drop from time to time or it drops after five seconds and never comes back?
Drops for a few seconds every 10-15 seconds then picks back up again.
OH! That is very different from what we've been thinking. Or at least what I've been thinking. That's a dropping issue, not one way audio. One way audio, or what is often called that, is that just one way gets audio. This is one way has audio cutting out. Not the same. Not sure how to term them, but I was thinking you were referring to a set up issue. This is definitely unrelated to STUN or NAT or anything like that, those don't "come back".
This is almost certainly a WAN saturation issue and or packet loss issue. You are losing RTP packets or they are so late that they are thrown away. Pretty much this is your WAN or your SIP trunk provider. Nothing that you can fix yourself.
I'm getting packet loss on the PBX which didn't exist on Friday when these issues started, it was just insane latency at that point, now I am getting 10-30% (depending on the ping) packet loss on the PBX. Oddly I don't get any of that on my desktop. Both are plugged directly into the firewall, the phone I used to test the 3rd party SIP trunk was also directly attached to the firewall.
PBX
Desktop
Both had been running for about the same amount of time and both had been started at the same time.
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Wow, so now to track down the packet loss. If the desktops don't see it.... where is it coming from?
What is the packet loss when trying to hit your firewall? What about hitting the router on the other end of the WAN?
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Is the PBX still running in Hyper-V?
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@scottalanmiller said:
Wow, so now to track down the packet loss. If the desktops don't see it.... where is it coming from?
What is the packet loss when trying to hit your firewall? What about hitting the router on the other end of the WAN?
PBX
Desktop
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@thecreativeone91 said:
Is the PBX still running in Hyper-V?
It is, I don't have another option right now.
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So no issues hitting the local firewall. Now the other wise of the WAN but still "local"?
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You don't have a Broadcom NIC, by chance?
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I really think it's related to the Hyper-V Nic Driver & Linux. Make sure the Hyper-V host has all windows updates installed. You could also Disable VMQ and Disable Large Send Offload Version 2
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@thecreativeone91 said:
I really think it's related to the Hyper-V Nic Driver & Linux. Make sure the Hyper-V host has all windows updates installed. You could also Disable VMQ and Disable Large Send Offload Version 2
I moved to a different host last night. I disabled VMQ, not Large Send Offload though, I will look into that.
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@scottalanmiller said:
So no issues hitting the local firewall. Now the other wise of the WAN but still "local"?
This is the WAN access IP address.
PBX
Desktop
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Tested that ping and did not see any errors.
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Yup, testing from here and not seeing packet loss. Looks good at the WAN side, as far as the pure WAN link.
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I've tested it from my house as well and it works fine. So that tells me it is something internal.
Have people had issues running a PBX on Hyper-V? I've heard about the linux driver issues that 2008 had, but I was fairly certain that those had been resolved.
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I run PBX in a Flash and Free PBX on Hyper-V no issues.
I have ran Elastix 2.4 as a demo on Hyper-V.
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@coliver said:
I've tested it from my house as well and it works fine. So that tells me it is something internal.
Have people had issues running a PBX on Hyper-V? I've heard about the linux driver issues that 2008 had, but I was fairly certain that those had been resolved.
Are you running it as a Generation 1 or Generation 2 VM?
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@thecreativeone91 said:
@coliver said:
I've tested it from my house as well and it works fine. So that tells me it is something internal.
Have people had issues running a PBX on Hyper-V? I've heard about the linux driver issues that 2008 had, but I was fairly certain that those had been resolved.
Are you running it as a Generation 1 or Generation 2 VM?
Generation 1
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More ping data all started at about the same time for about the same length.
VM Host 1 - Windows and Linux Server
Windows Server
Linux Server
VM Host 2 - PBX
PBX
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That really makes it seem like a driver or similar issue. Very weird.
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I'm really concerned as to why it would pop up 5 months after the original deployment. Even if it were a driver issue. Could a Linux update have caused this?
